They are basically copied from thetop of http://orgmode.org/worg/org-tutorials/encrypting-files.html

The first line loads epa-file (epa-file.el --- the EasyPG Assistant, transparent file encryption )

The second line looks like a way to call epa-file-enable if it hasn't been enabled. You can just call epa-file-enable, and it does the check too, but this probably avoids a minibuffer message when it is already loaded. I think this function provides a handler for files ending in .gpg which need to be en/decrypted by gpg.

John

-----------------------------------
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803

@johnkitchin
http://kitchingroup.cheme.cmu.edu

On Fri, Aug 14, 2015 at 4:01 AM, Sebastien Vauban <sva-news@mygooglest.com> wrote:

Hello John,

> Here is the setup I have that worked when I tried it last ;)
>
> ;; encryption
> (require 'epa-file)
> (unless (memq epa-file-handler file-name-handler-alist)
> (epa-file-enable))

Do you remember what are those 2 lines for?

Best regards,
Seb

--
Sebastien Vauban